2004/06/23 by D. Delepine, D. Delépine, Shaaban Khalil +1
Physics and Astronomy · #Baryogenesis #Branching fraction #CP violation #Cosmology and Gravitation Theories #Electroweak interaction #Flavour #Mass matrix #Minimal Supersymmetric Standard Model #Mixing (physics) #Neutrino #Neutrino Physics Research #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Quantum mechanics #Supersymmetry #hep-ph
paper · pdf · doi:10.1016/j.physletb.2004.08.025
published as Phys.Lett. B599 (2004) 62-74 · 17 pages, 3 figures
arxiv created 2004/06/23 · openalex publication_date 2004/08/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We analyse the top flavour violating decays in general supersymmetric model using the mass insertion approximation. In particular, we discuss the impact of a light right-handed top-squark and large mixing between the first or second and third generation of up-squarks on processes as t→qγ,g. We also take into account the relevant experimental constraints from B-physics and the requirements for a successfull electroweak baryogenesis on squark mixings. We show that for general large mixings in squarks mass matrix, the branching ratio of the t→qγ,g (q=u,c) can be as large as 10−6.